SWISS KRONO OSB/3 stands for Oriented Strand Board. It is a wood-based product in the form of a flat-pressed three-layer board consisting of rectangular flat strands which, under the influence of high pressure and temperature, with the use of synthetic resin as a binding agent, are pressed down to form a board by the hot rolling method. OSB/3 is the first wood-based board developed specifically for the construction industry.
SWISS KRONO OSB/3 IS A TRADE NAME OF OSB BOARDS MANUFACTURED BY SWISS KRONO LTD, ŻARY
The origins of wood-based materials go back to the 1940s when the chipboard production technology was developed. Armin Elmendorf is regarded as a pioneer of the new technology.
1960s saw the development and production of a wood-derived board called waferboard. The product was made of compressed pieces of wood, measuring 25 x 45 mm, arranged in different directions. The board was continuously improved until the 1980s, while 1981 saw the launch of the OSB.
The invention of the wood-based board made it possible to use young, low trees in the production process. Wood-based boards manufactured on the industrial scale could achieve the desired dimensions, thickness and resistance regardless of the size of the input product.
Oriented Strand Board is flat-pressed wood-based board with oriented wood strands. Flat strands with a thickness of 0.5-0.7 mm and a length of up to 140 mm are set in three layers, while the strands in the external layers are oriented in parallel lines and those in the internal layers perpendicularly to the major board axis. The strands are pressed under conditions of high pressure and temperature with the use NO FORMALDEHYDE resins as binders.
High technical parameters of the SWISS KRONO OSB board are due to the fact that wood properties are retained, flat strands are levelled out in layers and long strands are overlapped. A high resistance to atmospheric conditions is provided by spraying the strands with a special size system and a paraffin emulsion in sizing machine SWISS KRONO OSB is manufactured on a continuous duty Conti-Roll press according to the most modern technologies and therefore it is characterised by the stability of shape, a very good resistance to atmospheric conditions and impacts, as well as a good sound insulation, easy workability and processability. The micro-structure of the interpenetrated strands prevents edge breaking off also in the case of edge joining with wood screws or nails, and important mechanical properties in framework construction.
Kronopol OSB is available in the following varieties: OSB/2, OSB/3 and OSB/4.
|SWISS KRONO OSB/1 - universal board with no load transfer, suitable for interior applications in dry conditions.|
|SWISS KRONO OSB/2 - board with load transfer properties, suitable for applications in dry conditions.|
|SWISS KRONO OSB/3 - board with load transfer properties, suitable for 1-2 usage class according to PN-EN 13986 applications in moderate humidity conditions.|
Depending on the edge finish, two types of boards can be distinguished:
|board with straight edges|
|4-sided tongue-and-groove board|
Due to their high resistance to air moisture, low absorbability and swelling, SWISS KRONO OSB/3 are especially suitable for the construction of buildings in the framework technology. They have appropriate strength parameters ensuring the required rigidity and strength of the building structure.
SWISS KRONO OSB/3 is the wood-based material of the future. High quality, environmental friendliness both in production and use, coupled with universal applications, are the most important benefits of SWISS KRONO OSB/3.
SWISS KRONO OSB/3 structural board is perfectly suited for:
SWISS KRONO OSB/3 board types can also be used for:
Any SWISS KRONO product has to meet very rigorous requirements in order to satisfy customer expectations. At every production stage the product undergoes strict quality control procedures focused on:
Finished boards are regularly tested according to special control procedures and standardised tests.
Because it is a wood-based board type with versatile applications and an excellent alternative to wood boards, plywood and traditional chipboard. It is available in a wide range of sizes and thicknesses. An important reason for picking OSB is its the use of formaldehyde-free synthetic resins as binders, which classifies SWISS KRONO OSB/3 for the hygiene class E1.
SWISS KRONO OSB/3 is available not only in the straight-edge version for universal applications, but also in upgraded options for special uses, e.g.:
SWISS KRONO OSB/3 is also a revolutionary step ahead in wooden building applications. Houses built by the framework technology based on SWISS KRONO OSB/3 are:
|lasting for many generations|
|quick to construct.|
Short construction process does not mean that houses are of inferior value – quite the opposite. Thanks to SWISS KRONO OSB/3 advantages, single- and multi-family framework buildings are constructed faster and thus cheaper. Erected with precision, they can last for dozens of years. What is more, the houses can be easily and economically heated. The overall heat transfer coefficient for a wall made in the framework system depends on the type and thickness of the insulating material. SWISS KRONO OSB/3 ensures healthy, user- and environment-friendly houses.
Before using SWISS KRONO OSB/3, you should take into account the following factors: